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[test] Typo in documentation?
by Christian Henning 14 Jul '09

14 Jul '09

Hi there, on the page: http://www.boost.org/doc/libs/1_39_0/libs/test/doc/html/utf/user-guide/runt… the command line argument for detecting memory leaks is "build_info". Shouldn't that be "detect_memory_leak"? Regards, Christian

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Re: [Boost-users] Date Time I/O formatting question
by Polder, Matthew J 14 Jul '09

14 Jul '09

Commander Pirx wrote: ------------------------------------------ Would be interesting whats your format string looks like. Not all format flags work with all date_time classes. %z (Time zone) for instance works only with local_date_time. ------------------------------------------ It seems that no matter what formatting I try to use, it doesn't work. Example: TimeConverter sampleFile.txt %d:%m:%Y_%H:%M:%S %m:%d:%Y_%H:%M:%S sampleFile.txt: 05:01:2007_23:08:02 06:01:2007_23:09:04 expected output: (month and day positions switched) 2007-Jan-05 23:08:02 01:05:2007_23:08:02 2007-Jan-06 23:09:04 01:06:2007_23:09:04 output: 2007-Jan-05 23:08:02 2007-Jan-05 23:08:02 2007-Jan-06 23:09:04 2007-Jan-06 23:09:04 Code is below #include <fstream> #include <functional> #include <iostream> #include <sstream> #include "boost/date_time/gregorian/gregorian.hpp" #include "boost/date_time/posix_time/posix_time.hpp" #include "boost/date_time/local_time/local_time.hpp" using namespace std; int main(int argc, char** argv) { stringstream ss; ifstream in( argv[1] ); string inputFormat = argv[2]; string outputFormat = argv[3]; boost::local_time::local_time_facet* output_facet = new boost::local_time::local_time_facet(); boost::local_time::local_time_input_facet* input_facet = new boost::local_time::local_time_input_facet(); ss.imbue(locale(locale::classic(), output_facet)); ss.imbue(locale(ss.getloc(), input_facet)); output_facet->format( outputFormat.c_str() ); input_facet->format( inputFormat.c_str() ); while ( !in.eof() ) { string s; getline( in, s ); ss<<s; boost::posix_time::ptime p; ss>>p; string s1 = boost::posix_time::to_simple_string(p); cout<<s1<<"\n"; ss.str(""); ss<<p; string s2 = ss.str(); cout<<s2<<"\n"; std::ws(in); ss.str(""); } }

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BOOST::Test floating_point_comparison.hpp:224: warning: ‘boost::test_tools::<unnamed>::check_is_close’ defined but not used
by Avi Bahra 14 Jul '09

14 Jul '09

I am using boost 1.39 on gcc , I have many tests, but keep getting the warning above. Is there any way to get rid of this compiler warning ? Any help appreciated. Best regards, Ta, Avi

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Build error
by OvermindDL1 14 Jul '09

14 Jul '09

I am attempting to build boost, first I set some environment vars (some may not be useful anymore, but I still set them): set BZIP2_SOURCE=G:\SDKs\boost\bzip2-1.0.4 set ZLIB_SOURCE=G:\SDKs\boost\zlib-1.2.3 set HAVE_ICU=1 set ICU_PATH=R:\SDKs\icu\icu set EXPAT_INCLUDE=G:\SDKs\expat\expat_cvs\expat\lib set EXPAT_LIBPATH=G:\SDKs\expat\expat_cvs\expat\win32\bin\release I then call: bootstrap.bat bjam --build-type=complete --toolset=msvc-8.0 --without-mpi --without-python --prefix=R:/SDKs/boost/built_head --build-dir=R:/SDKs/boost/build_head define=_CRT_NONSTDC_NO_DEPRECATE define=_CRT_SECURE_NO_DEPRECATE define=_SECURE_SCL=0 define=_SCL_SECURE_NO_DEPRECATE define=_HAS_ITERATOR_DEBUGGING=0 install>..\build-HEAD.log And my build-HEAD.log contains: Note: Building Boost.Regex with Unicode/ICU support enabled Using ICU in R:\SDKs\icu\icu/include warning: Graph library does not contain MPI-based parallel components. note: to enable them, add "using mpi ;" to your user_config.jam error: link=shared together with runtime-link=static is not allowed error: such property combination is either impossible error: or too dangerious to be of any use I have never seen those last three errors, and other then the bootstrap my commands have not changed in many many versions. What is causing them?

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Boost Regex: Use boost::uint32_t as character type.
by Etienne Philip Pretorius 14 Jul '09

14 Jul '09

Hello List, I just like to know, if you can use a std::vector<boost::uint32_t> as a source to match regular expressions against it. Etienne

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Re: [Boost-users] boost programmer_option.hpp
by Narendra R 14 Jul '09

14 Jul '09

> > Thx ravi, I got to know and it working. I was not knowing that -l is for searching the lib object -L for lib path or for linking object. Thanks one again > > ------------------------------ > > Message: 4 > Date: Sat, 11 Jul 2009 11:03:20 -0400 > From: Ravi <lists_ravi(a)lavabit.com> > Subject: Re: [Boost-users] boost programmer_option.hpp > To: boost-users(a)lists.boost.org > Message-ID: <200907111103.20188.lists_ravi(a)lavabit.com> > Content-Type: Text/Plain; charset="iso-8859-15" > > On Friday 10 July 2009 01:28:44 Narendra R wrote: > > I tried to link like this > > g++ -I /home/narendra/boost_instal/boost_1_39_0 test.cpp -o test -L > > /home/narendra/boost_instal/boost_1_39_0/stage/lib > > > -l/home/narendra/boost_instal/boost_1_39_0/stage/lib/libboost_program_optio > >ns-gcc41-mt-1_39.a > > The '-l' is not required when explicitly specifying the whole library. So, > you > would use one of the following. Replace $INS with > /home/narendra/boost_instal/boost_1_39_0 in the code below. > > Option 1: > > g++ -I$INS test.cpp -o test $INS/libboost_program_options-gcc41-mt-1_39.a > > Option 2: > > g++ -I$INS test.cpp -o test -L $INS/stage/lib > -lboost_program_options-gcc41- > mt-1_39 > > In option 2, depending on whether you use static linking or dynamic > linking, > you may want to set LD_LIBRARY_PATH before running the example. > > Regards, > Ravi > > > > ------------------------------ > > Message: 5 > Date: Sat, 11 Jul 2009 11:08:52 -0400 > From: Ravi <lists_ravi(a)lavabit.com> > Subject: Re: [Boost-users] Boost Python is slow? > To: boost-users(a)lists.boost.org > Message-ID: <200907111108.52321.lists_ravi(a)lavabit.com> > Content-Type: Text/Plain; charset="iso-8859-1" > > On Thursday 09 July 2009 05:00:47 Tyomich on the AIR wrote: > > And then when I use a simple function which just increments the x member > of > > every object, this function takes about 4 seconds to process the whole > list > > (1000000 items) of Boost-wrapped objects and less than a second to > process > > objects of my own wrapping! How this can be possible? Is Boost.Python > much > > more slower than Python itself? > > Boost.Python is a little slower than wrapping directly using Python C-API, > especially in very simple cases like yours. (It is a variant of the > abstraction penalty.) However, it is hard to believe that it is 4x slower. > Would you mind posting complete compilable examples so that we can take a > look > at it? > > Regards, > Ravi > > >

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Re: [Boost-users] [Program Options] Difficulty compiling for static runtime library
by Lindley M French 14 Jul '09

14 Jul '09

> It does not seem you have tried *exactly* what Steven has suggested. Ah! Yes, when I do this: bjam.exe debug runtime-link=static link=static --with-program_options it at least appears to be *trying* to do the right thing. Still no joy on the burn, though. ...patience... ...found 523 targets... ...updating 26 targets... common.mkdir bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static common.mkdir bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\cmdline.obj cmdline.cpp libs\program_options\src\cmdline.cpp(272) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning) compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\config_file.obj config_file.cpp compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\options_description.obj options_description.cpp compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\parsers.obj parsers.cpp compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\variables_map.obj variables_map.cpp compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\value_semantic.obj value_semantic.cpp compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\positional_options.obj positional_options.cpp compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\utf8_codecvt_facet.obj utf8_codecvt_facet.cpp compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\convert.obj convert.cpp compile-c-c++ bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\winmain.obj winmain.cpp failed to write output file 'bin.v2\libs\program_options\build\msvc-8.0\release\link-static\runtime-link-static\threading-multi\libboost_program_optio ns-vc80-mt-s-1_39.lib.rsp'! What could cause this? All the other builds have worked fine, and I'm not low on drive space or anything.

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asio DNS SRV
by Etienne Philip Pretorius 14 Jul '09

14 Jul '09

Hello list, I ran across an old post, http://osdir.com/ml/lib.boost.asio.user/2007-05/msg00108.html, and I am wandering if asio does support DNS SRV records now? Thank you Etienne

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Regular Expression
by Wong Peter 14 Jul '09

14 Jul '09

Hello to all, i want to search a container which copied from file with certain regular expression and then display it to stdout; Here is my code: [code] std::cout << "\n\nEnter Search designation : "; std::string userDesignation; getline(std::cin, userDesignation); std::ifstream inHandle("C:\\Staff.txt"); std::vector<std::string> data; data.reserve(100); std::copy(std::istream_iterator<std::string>(inHandle), std::istream_iterator<std::string>(), std::back_inserter(data) ); boost::regex searchExpression(userDesignation); boost::match_results<std::vector<std::string>::iterator > result; boost::regex_match(data.begin(), data.end(), result, searchExpression); [/code] The error is error C2664: 'char boost::w32_regex_traits<charT>::translate(charT,bool) const' : cannot convert parameter 1 from 'std::basic_string<_Elem,_Traits,_Ax>' to 'char' error C2664: 'char boost::w32_regex_traits<charT>::translate(charT,bool) const' : cannot convert parameter 1 from 'std::basic_string<_Elem,_Traits,_Ax>' to 'char' I think the error cause by vector string iterator rather than string iterator. Any workaround solution to this problem ? Thanks. -- Linux

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[Multi-Index] New "hierarchical" indexing?
by Dominique Devienne 14 Jul '09

14 Jul '09

I'm using BMI containers with several indexes, notably an index on the parent of each entry. But some of my BMIs have a hierarchical parent-child relationship of their entries, and I need to answer hierarchical queries like is-child-of, is-descendant-of, is-ancestor-of, etc... In another use case, entries have a "scenario" key, where scenario is hierarchical, and I want all entries in BMI A from a given scenario and all its ancestors, with the scenarios being in BMI B (i.e. "cross-bmi"). Of course I can do a "full scan" but I'm looking for something hopefully faster/smarter. Has anyone experimented with providing such a specialized index? At least in one instance, I'm manually keeping a separate container with all the edges of the DAG to be able to answer such a query, but then I have to maintain this "index" separately from the BMI, which is precisely what BMI is designed to avoid. This is also a solution that is OK in this particular case (~ 1500 nodes, ~7500 edges), but may be too expensive for some other graphs with more nodes. Any input would be appreciated. Thanks, --DD

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